It can be used in cables, it is melted down with the silver and plated on the copper base but it cannot be made into strands like you can with copper.If you are a serial cable believer then you'll lap this up, but as with all cables it still proves nothing. Graphene is the new buzz word and has now trickled down to hifi cables as the new next big thing. All graphene is not created equal, the most pure can cost hundreds of thousands per tonne, bet they don't use this in cables.
Yes graphene is very very expensive.
It isn't just cables, I'm open to anything new, if you don't explore you never learn.