I don't really think it's a good idea taking your wife's money to trade, I think you are trying to cause family problem, the best thing you will do is just to return the money to your wife and look for your own money and start trading with it, or you should look for another source where you will get money to pay your wife back.
Indeed, it is exactly very risky, too risky. Moreover, the money should be used for daily necessity fulfillment or other urgent or emergency condition, this is not a wise way to take it although there is probability to give back again the money after getting profits. But, who will guarantee if they can really earn much profits from trading, right?
Although we know that the condition may be permitted by the wife, but as a husband, this is not good and wise decision, too risky. If he can get the profits, it will be good.But if he cannot manage the money and lose much, this will be a big problem to him.
and from what it seems, the OP is indeed a beginner in this market. should not use that money for his trading capital because the probability of losing it is very high. why not try using his own money, even a small one just to get the grasp of crypto trading. his wife may be okay with it but i guess, she doesn't know also what he's into.