To answer this question we have to use Avogadro's number, that is the number of molecules present in one mole of any substance.
According to it, there are 6.022x10^23 molecules of copper in one mole of it:
[tex]4.14\times10^{35}moleculesCu\cdot\frac{1molCu}{6.022\times10^{23}moleculesCu}=6.87\times10^{11}molCu[/tex]It means that there are 6.87x10^11 moles of copper.
