https://www.amazon.com/Copper-Sulfate-Aqueous-Solution-30mL/dp/B07JMGZQC2
https://us.vwr.com/store/product/9456887/copper-ii-sulfate-20-w-v-in-aqueous-solution
Copper forms these aquo complexes with water in the presence of sulfates and nitrates. While it does form these complexes, it is still an aqueous solution of copper sulfate. The water dissolves both the ions.