3x5 room

so i have a 3x5 room that i will be growing in how many plants do you guys think i should plant also i'm thinking i will be using 5 gallon dwc buckets or maybe soil any help would be great

Depends in grow method (SOG,SCROG,Supercrop,etc) and how big you want them to be.

You could do 1 or 2 or up to 60-135

You should plant thousands.
Plant them in cups and jars and condoms and egg cups.

And, whatever you do, don't try researching any of the basic facts yourself.

Just ask random questions on this forum.

"How many plants?"
"Should I use water or H2O?"

You can get answers for everything right here....
so do not read a single page about growing.
It would be a waste of your time.