How to dissolve a copper nail completely ? important

[jamjoom90]

i need to dissolve a copper nail completely what chemical can do that and how much time is enough to form the reaction , i thought about sulphuric acid as a reactant but i don;t know if it dissolve it completely or partially !

 

[Simon Bridge]

Sulphuric Acid should do it all right...

Cu + 2H₂SO₄ → CuSO₄ + 2H₂O + SO₂
...use the chemical equation for the reaction to work out how much acid you'd need.
You'll want to factor in the kinds of things you know will affect reaction rates.

If this is a class question - it is likely about reactivity of copper.