faraday electrolysis laws?

Does anyone know the formulae that "Faraday" discovered to find how many amps were need to gain a certain amount of an element in a certain time by the means if electrolysis?
I know it includes "moles" and 1faraday = 96,485 Coulombs, Ive had to teach myself some of this as it is not taught in the GCSE syllabus
Ive looked some place that say 20apms is needed to produce 1 litre of H2 per minute and other formulae ive used say 144amps?
I also have been fishing about in some old O-level books but cant find much...
Could any one clear this up for me?
Thanks,
I know it includes "moles" and 1faraday = 96,485 Coulombs, Ive had to teach myself some of this as it is not taught in the GCSE syllabus

Ive looked some place that say 20apms is needed to produce 1 litre of H2 per minute and other formulae ive used say 144amps?
I also have been fishing about in some old O-level books but cant find much...

Could any one clear this up for me?
Thanks,