This is actually a commonly asked question but let me try to answer this for you. Since there's a possibility for a trader to make a profit from trading on eToro then the answer to that is yes but the thing is, it's not a sure-fire way to get rich like the lottery or something.
Via eToro, you can access plenty of assets or markets so there are plenty of trading opportunities. And of course, there's the copy trading feature which you can also use so you can just rely on the expertise of the more experiences users by copying their trades.
But keep in mind that trading and copy trading comes with risks and while making a profit from these kinds of activities is always possible, if your primary goal is to "become rich" without any caution, experience or hard work then this could be problematic for you and you might just end up getting disappointed.
Proper education and training is crucial if you want to make substantial profit from using this platform. Take note that I tried to avoid the "get rich" or "make money" because I think this is not the right mindset and even professionals and successful traders are bound to experience losses with their positions.
I suggest that you start first with a demo account and read more about eToro money-related matters here. Hope this helps