What type of reaction is copper oxide + sulphuric acid? What are the products?

$C u O \left(s\right) + {H}_{2} S {O}_{4} \left(a q\right) \rightarrow C u S {O}_{4} \left(a q\right) + 2 {H}_{2} O \left(l\right)$
This is simply an acid-base reaction... And it is good to do because $C u S {O}_{4} \left(a q\right)$ forms a lovely, blue-coloured solution due to the formation of ${\left[C u {\left\{{\left(O H\right)}_{2}\right\}}_{6}\right]}^{2 +}$...i.e.
${\underbrace{C u O \left(s\right)}}_{\text{black salt"stackrel(H_2SO_4)rarrunderbrace(CuSO_4(aq))_"blue solution}} + {H}_{2} O \left(l\right)$