Basically what Mario just said...
So say for example TSLA is at $200, then your $195 only have $5 of value, however, before the CC they might be worth $15-$20. Then suppose the stock moves up to $205 after earnings, then your call might only be worth $14 ($10 intrinsic value + $4 time premimum) and so you might actually lose money in holding the options if the call isn't good... Of course if it is good, then you can make a lot of money so it depends on how you think the market will react to the call, and that is dependent on the way the stock behaves leading up to the earnings.
I'm willing to say that if TSLA holds around $200 pre-earnings, we might see a $15+ pop (I think the earnings will be very good) and go to the top of the channel which will be around $225... But of course this is my opnion now and it might change if we break $200 way before earnings.
I would like to write a more extensive reply and help out, unfortunately I'm very busy right now. Feel free to post all your questions, I'll have much more time this weekend and would be more than happy to help out any of the new learners on these threads.
Also I recommend following CitizenT, sleepyhead, kevin99, CapitalOpressor etc. because they are far more experienced than I am, and have very good insights and are great contributors on these forums. Good luck