Create a Chees Torunament (not daily)

I am studying to be a teacher. I want to organize a chess tournament for 8th grade students. The tournament has to take place online because of Covid-19.

But I want the tournament to go on for a month. My students play two games every weekend. Is it possible to organize such a tournament?

about 20 students will take part. I want to reward the top three. That's why the tournament should end.
More than two games can be played and it can be longer than a month. It is important that it doesn't end in a day. I want the students to be busy for weeks.

I don't know if the students have played on chess.com before. I can ask them to create an account if necessary.

Which type of tournaments can i make in chess.com. When i buy a premium account. It is allowed to make tournaments which is longer then one day?

I am sorry to report to you that after hours of investigation, it is impossible to create a chees tournament on chess.com. However, I believe it is possible to conduct such a tournament on an alternate platform: cheese.com. 

My research also found this.

I did something like that, but I played 2 games on saturdays every week for 3 months.

I finished with 10 wins, 2 losses, and 0 draws.

PLease read my Question.

Thank you NerdyCowboyKid. 

He's trolling lol.