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HELP! A constant current is passed through an electrolytic cell containing molten MgCl2 for 18 hours……..?

If 4.8 x 10 ^ 5 g of Cl2 are obtained, what is the current in amperes?

I am trying to study for my final, and there are review final questions with no answers. I try to do some , but am not sure if thats the way to do it or if it is the right answer.

Thank You , I really appreciate your time.