In general, PCB copper thickness is 1oz or so; As for PCB trace width, if 1mm is able to flow through 1A current; Then 2mm can flow through 2A current.
That’s to say, if PCB trace thickness keeps the same, double PCB trace width will follow double PCB trace current; Similarly, as long as PCB trace width keeps the same, double PCB copper thickness also means double PCB trace current;
