About Gold Plating

Howdie

I’ve noticed that in catalogues the plating sollutions contain the
same amount of gold and are listed as “24K, 18K, 14K 10K coloured”

What does this mean?

What other metals etc. are in plating solution and end up on the
piece?

Is there any nickel used in the process!!

Is there an option to just plate with 18K or 14K etc. but the place
I get supplies just doesn’t stock it?

If not then why can you Rhodium plate and not Gold plate?

I’m confused…

Thanks
Aimee Kennedy
www.fineandgood.com