Right, now that I have your attention.

Lets say we have this configuration.

+nnn-nnn+ Stainless steel 316 grade. Same electrolyte for this scenario, be it sodium hydroxide or potassium hydroxide or baking soda.

Now we are successfully pumping 15A@13.8V through the plates and they are spaced 1mm apart.
Now my question is this.
Would making the plates a foot square versus 6 inches square make a difference to the amount of hydrogen being created?
I say no because it is the amount of current being passed which creates the hydrogen....but I could be wrong.
Also what about the thickness of the metal? would it make a difference.
Someone said after a few experiments .9mm 316 stainless was the best producer for him.

I put it to the you...the avid hydrogen creators of this forum...what do you think?