Toilets, Sinks, Showers, Tubs and Disposals - New double sink, p-traps and bubbles

I will be replacing a single kitchen sink with a new double one and have questions about the drains. I've seen discussion about using 1 or 2 P-traps being code or not so I'm not sure what to do. One thing I do know is that I do NOT want bubbles from one sink coming up the drain of the other. A friend had that problem for yrs and in their newly built house they used 2 P-traps connected to 1 vertical stack that went thru the floor. Maybe connecting to a vertical drain thru the floor makes it code for 2 traps? In the UPC quotes on this forum I'm not sure what a "trap arm" actually is.

In my situation, I have a 1 1/2" copper drain that goes into the wall, then horizontal with slope for 44", and then Ts which goes into basement for draining and up thru roof for venting. What's my best approach for eliminating the drain bubbles, which I think needs 2 traps? I have access to walls and floors so I can plumb just about anything. If I need big changes, is it worth switching to PVC? Which would be quieter?

TIA

CJ

Chromed brass may be just a little quieter than PVC (debatable), but PVC drain assemblies are made to just hand-tighten. Your call.
You only need one trap. Just T over to it from the other sink drain tailpiece.
You will need an adapter from the 1.25" drain assembly to the 1.5" wall drain.
Good Luck!
Mike

I don't usually second-guess Mike but I think he may have missed that it is a kitchen sink drain which should be
1 1/2 inch all the way.Everything else he said is correct. My apologies to Mike if I misunderstood something he said or if I was flat wrong.

majakdragon is right. What was I thinking? LOL The 1.25" is for bathroom sink drain assemblies.