Amajor source of sodium metal is the electrolysis of molten sodium chloride. what magnitude of current produces 1.0 kg of sodium metal in one hour?

The chemical reaction of NaCl going through electrolysis is: 
2Na+ + 2Cl- --> 2Na(s) + Cl2 

Two electrons are transferred. 

All we need to do is use stoichiometry to solve for the amount of charge transferred 

1000 g Na ( 1 mol / 23 g) X (2 mols e- / 1 mol Na) X ( 96500 C / 1 mol e-) = 8.39 x 10^6 C 

Current is C/s and so we must divide our charge by the time which is one hour, or 3600 seconds: 
8.39x10^6 C / 3600 s = 2331 amps. 

I hope this helps! Good luck :)

The correct answer is b.hoped i you