Concentration of Copper Sulphate Solution

If 80g of copper sulphate CuSO4.5H2O. is dissolved in deionised water to make 5L of solution. The concentration of the copper sulphate solution is x×10−3‌mol‌L−1. The value of x is ......... .
[Atomic massesCu=63.54u,S=32u, O=16u,H=1u ]