Determine the amount of electrons needed to deposit 6.4g of copper during the electrolysis of copper (ll) tetraoxosulphate (IV) solution [Cu = 64]

Determine the amount of electrons needed to deposit 6.4g of copper during the electrolysis of copper (ll) tetraoxosulphate (IV) solution [Cu = 64]

A 0.10 mole
B 0.20 mole
C 1.0 mole
D 2.0 mole

waec 2003 chemistry

The correct answer is B. 0.20 mole

No explanation given

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