I have an 8cm not mm mass protruding from appendix into cecum. will they be able to remove laparoscopic?

Yes First biopsy: Yes , first need biopsy , if it is benign , possible to remove through endoscope , other wise even if it is malignant could be resected (along with ileum and cecum ) by laparoscope.

Certainly feasible: Depends on your surgeon, the biopsy results, the preop workup including ct scan, and whether you have had prior abdominal surgery and for what. Usually the surgery will involve removal of the last part of small bowel and the entire right/ascending colon, and hooking the small bowel to the transverse colon. All feasible generally with laparoscopy if surgeon is experienced in lap surgery.

Likely: Laparoscopic colon surgery is highly dependent on the expertise of your surgeon & their experience. See your surgeon to ask what is possible for your specific situation, as tumor size, location & possible attachments affects the choices of the best surgical approach for each person.