Probably not at current price, where the expected profit would be around $0.30/day per CPU involved. But currently the price is a bit fluctuating, so there actually may be some decent profit if you wait

There is not many CPU-only coins, I've mined recently for example Verium in idle cycles and while I made over $1/day per CPU involved, it was only thanks to a price raise, so I'd guess the cost is more or less the same across all coins - equilibrium based on demand and supply, but if you time selling/keeping the coins at the right moment, you could make a bigger profit .