A solution of copper(II) sulfate is electrolyzed for 20 minutes using a current of 3A. The amount of copper deposited at the cathode is ___ .
[Given: molar mass of copper and sulfur are 63.5 g mol–1 and 32.1 g mol–1 respectively, Faraday constant = 96500 C mol–1].
1
1.979 g
2
0.993 g
3
1.186 g
4
2.537 g