The photodissociation dynamics of I-2(-)(CO2)(n)(n=4-16) clusters excited at 780 nm have been studied with femtosecond photoelectron spectroscopy (FPES). The range of cluster sizes spans the uncaged and fully-caged product limits for this reaction. We observe time scales for a variety of processes in these clusters, including dissociation of the I-2(-) chromophore, solvation of the I- fragment, the onset of recombination on the ground state of I-2(-), vibrational relaxation, and solvent evaporation. In addition, substantial trapping in a "solvent-separated" state is seen for clusters with n greater than or equal to 9; this state persists for at least 200 ps, the longest time delay probed here. Simulations of the spectra were performed in order to determine the time dependence of the electronic state populations, the I-2(-) vibrational distribution, and the number of CO2 molecules in the cluster. Results are compared to previous experimental and theoretical studies of I-2(-)(CO2)(n) photodissociation, and to a recent FPES study of I-2(-)(Ar)(n) clusters.