# How to calculate current density in an Electrolysis Process?

I have an anode & cathode, both of $$100 \times \pu{100\\mm}$$ size. The process requires $$\pu{450\\A/m2}$$ current density. How do I reverse calculate this? Do I use the total surface area of both Cathode and Anode or just Anode? Please help.

Thanks

• You use the cross-section, just like it were a wire. – Karsten Theis Jul 11 '19 at 13:34
• Cross-section of both Anode and Cathode or just Anode? – Abhishek Sharma Jul 15 '19 at 10:48
• Just one. Like in a wire, you would measure the cross-sectional area once, not cut the wire into many piece and add up all the areas. See qph.fs.quoracdn.net/… – Karsten Theis Jul 15 '19 at 14:54
• Got it now. Thank you very much! Appreciate your help. – Abhishek Sharma Jul 15 '19 at 15:54