Commercial electrolytic cells for producing aluminum operate at 5 volts and 100,000 Amperes. How long does it take to produce 1000 kilograms of aluminum?
a. 1 x 10^15 seconds
b. 9 x 10^6 seconds
c. 7 x 10^3 seconds
d. 3.3 x 10^4 seconds
e. 1 x 10^5 seconds